Incandescent-electric-lamp socket.



G. W. GOODRIDGB.

INGANDESOENT ELECTRIC LAMP SOCKET.

APPLICATION FiLED JULY 31, 1907.

Patented Dec. 29, 1908.

WITNESSES ATTORNEYS mcToN, .u. c.

UNITED STATES PATENT OFFTQE.

GILBERT W. GOODRIDGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANTELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON-NECTICUT.

INCANDESCENT-ELECTRIC-LAMP SOCKET.

To all whom it may concern:

Be it known that I, GILBERT W. G001 RIDGE, a citizen of the UnitedStates of America, residing in Bridgeport, in the county of Fairfield,in the State of Connecticut, have invented certain new and usefulImprovements in IncandescentElectric- Lamp Sockets, of which thefollowing is a specification.

My invention consists of an improvement in that class of incandescentelectric lamp sockets, in which means are provided for permitting theshell to be fitted into the metal cap in any desired position rotarilv.

In my application for patent filed July 20,

1907, Serial No. 384,732, I have described a construction of lampsocket, in which the shell can be fitted to the cap in almost anyposition rotarily, and that is accomplished by many times repeating thelatching element symmetrically around the circumference of one of thetelescoping parts and preferably also by corrugating that partlongitudinally of the aXis of the socket and also corrugating the otherpart accordingly.

In the accompanying drawings Figure 1 is a perspective view of a socketshell and cap detached, embodying my invention; Fig. 2 is a sectionalview of one side of the socket, showing the manner of latching the twoparts; Fig. 3 is a similar view of the diametrically opposite side ofthe socket, but showing the two parts latched; Fig. 4 is an inner faceview of the cap; Fig. 5 is an end view of the shell; and Fig. 6 is aperspective view of a modification.

A is the shell with the key or other slot K, and B is the cap, theflange F of which is corrugated longitudinally of the axis of thesocket. The number of such corrugations may be twenty for a socket ofstandard size. On this flange I form a series of inward projections f,equal in number to the corrugations, and in Figs. 1 to 5, I have shownthese projections as punched inwardly from the outwardly projectingparts of the corrugations. These projections form the many timesrepeated latching elements on the cap.

The end of the shell which telescopes with in the flange of the cap iscorrugated to correspond, and the outwardly projecting parts of two ofthese corrugations are provided with Patented Dec. 29, 1908.

1907. Serial No. 386,333.

! openings (1, with which any two corresponding projections f on the capmay latch. The corrugations thus provided with openings (1 arepreferably diametrically opposite each other and one of them is adjacentto the slot is. The end of the corrugation above or beyond each openinga is beveled as at a Figs. 1 and 2, for the more ready insertion of theshell within the cap. All the other corrugations in the shell, exceptthese two having the openings a, are notched or cut away, open to theend of the shell as at c, Fig. 1, so that the cap will be latched onlyat the desired points, but may be latched in any desired positionrotarily.

The latching projections on the cap and the latching openings in theshell with the intermediate notches may be formed at the depressed partsof the corrugations, as indicated in Fig. 6, instead of at the outwardlyprojecting parts. In this case, the latching projections on the flangeof the cap are formed by cutting single horizontal slits in the flangeand pressing the metal below the slits inwardly to form on the innerface beveled latches so that two of these latches may engage theopenings at in the shell.

I claim as my invention 1. An incandescent lamp socket having a cap withprojections on the flange many times repeated symmetrically around thecircumference of the cap in combination with a shell having openings andopen notches also symmetrically arranged around its circumference, someof the projections on the cap latching with said openings and the otherprojections entering the notches.

2. An incandescent lamp socket, having a cap with corrugated flange andprojections thereon many times symmetrically repeated around thecircumference of the cap, in combination with a shell with corrugatedend having openings at some of the corrugations and open notches at theothers to cooperate with the projections on the cap.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

GILBERT W. GOODRIDGE.

Witnesses:

A. H. J ONES, H. W. GOLDSBOROUGH.

